baber/WOPTO huggingface dataset:
Patent GB-158763-A (GB)
Title: Improvements in or relating to boot sole stitching machines
IPC: D05B67/00
Filed: 1919-12-08
Abstract: 158,763. Gradwell, C. Dec. 8, 1919. Sewing-machines; waxing thread; rotary horns. -Wax-pots and rotary horns are heated by electric coils. Several coils 2 are located at either side and the back of a rotary horn 5 and their circuits include spring contacts 8, 9 and contact rings 6 with brushes 12. The rings permit the usual rotary movement of the horn and the contacts 8, 9 permit adjustment of the horn body upon the table 7. The coils may be controlled by a switch by means of which one, two, or three coils may be put into use. The wax-pot may have four heating-coils, the circuits being controlled by a three-position switch by means of which one, three, or four coils may be put into use.
Patent GB-871026-A (GB)
Title: Method and apparatus for charging coke-oven chambers with coal for coking
IPC: C10B31/04
Filed: 1957-10-01
Abstract: 871,026. Charging coke ovens. SCHUCTERMANN & KREMEN - BAUM AKTIENGESELLSCHAFT FUR AUFBEREITUNG. Oct. 1, 1957 [Oct. 1, 1956], No. 30678/57. Class 51 (2). In charging coal into a chamber of a coke oven the coal is introduced in one vertical stream and at least two lateral streams which lateral streams flow in opposite directions at an angle, downwardly, in the longitudinal central plane of the chamber. Guides 2 below the charging, holes 1 of a coke oven chamber are shaped so as to reduce the velocity of coal falling into the oven as little as possible and are mounted at an angle to each other in the central plane of the chamber so as to divide the stream of coal into a vertical stream 4 and at least two lateral streams 5 in the central plane of the chamber inclined in opposite directions to the vertical. This results in a charge of high, substantially uniform bulk density.
Patent GB-1107159-A (GB)
Title: Improvements in and relating to multi-hole wire-drawing machines and a method of threading-up the same
Inventor: RICHARDS SAMUEL HUGH
IPC: B21C1/04
Filed: 1965-07-20
Abstract: 1,107,159. Drawing. MARSHALL RICHARDS MACHINE CO. Ltd. 20 July, 1965 No. 30734/65. Heading B3P. In a multi-draft wire drawing machine there is a drawing die A, Fig. 3 (not shown), interposed along the wire path between each pair of drawing blocks (5 to 10), dancer pulleys (11 to 15) and guide pulleys (16-20) mounted between the die and the preceding block to define a loop path for wire passing therebetween, the dancer pulleys being mounted so that their axes of rotation are movable to vary the length of said loop path and means for urging the dancer pulleys, towards said guide pulleys to minimize the loop path size on the occasion of threading-up. Fig. 1, shows the mechanism associated with block No. 6, and comprises the dancer pulley 12 which is mounted on an arm 21. The arm is pivoted about an axis 22 and is movable between the solid line position and the dotted line position by a double acting pneumatic cylinder 24. The axis of the dancer pulley is set at an angle to direct the wire to the guide pulleys 17a or 17b which have co-linear axes. Also pivoted on the axis 22 is an arm 26 which is movable by a pneumatic cylinder to apply a clamping pad 27 against the turns of wire on the block 6. The upper guide pulley 17a is aligned with the top of the block 6 and the lower guide pulley 17b is aligned with the axis of the following die, so that sufficient turns of wire can accumulate on the block to ensure adequate cooling. The block is driven by a motor 30 and its speed is controlled by a variable resistance or reactance in series with the field-windings, the effective value of which varies in accordance with the position of the dancer pulley 12. Threading-up.-The free end of the wire is drawn through the die in a die-box 29 and temporarily secured to the block 6. The block is rotated until sufficient turns of wire are laid on and then the clamp 27 is operated. The clamp does not engage the two top turns of wire which are then lifted off the block, the order of the turns is reversed and they are dropped over the guide pulleys and dancer pulley. The wire is then threaded through the next die and connected to the next block, the arm 21 meanwhile being moved in an anticlockwise direction to take up slack wire in the loop. The speed ratio between the blocks (2, 3, 4 and 5) is preset on the basis of the die sizes used in the first four stages of the machine and the speed of the blocks is controlled by the dancer pulley 11, the speeds of the following blocks (6, 7, 8, 9) are controlled by the dancer pulleys (12 to 15) and the overall speed of the machine is pre-set by the speed of the last block 10.
Patent GB-461709-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M19/02
Filed: 1935-11-07
Abstract: 461,709. Automatic exchange systems. GENERAL ELECTRIC CO., Ltd., and MOSS, B. F. Nov. 7,1935, No. 30784. [Class 40 (iv)] Booster voltage, par ticularly at an unattended office, is generated by deriving an alternating current from the usual battery with the help of a pendulum interrupter 5 ... 8 rectifying as at 15 and smoothing if necessary. A choke 11 modifies the primary wave form. The booster voltage is generated only when needed by the application of earth to wire 2.
Patent GB-536883-A (GB)
Title: Improvements in or relating to cushioning means for chair rails and the like
IPC: A47C4/30
Filed: 1939-11-25
Abstract: 536,883. Cushions, buffers. WILLIS, A. P. R., and WILLIAMS, L. F. M. Nov. 25, 1939, Nos. 30800/39 and 11169/40. [Classes 52 (i) and 52 (iv)] [Also in Groups XXXIII and XXIII] A cushioning device for attachment to the rails or bars of chairs, settees; and other articles of furniture comprises a pair of spaced parallel rubber members 1, Figs. 1 and 2, of elongated form encased inrubberized material, canvas &c. connected by a weblike portion 4 constituting the means through which the fastening devices may be passed. The buffer strips 1 may be made of sponge rubber. In Fig. 5 the cushioning device is shown incorporated in a deck chair, and Fig. 6 shows a seat cushion. The rubber buffer strips may be rectangular in cross-section or may be tubular, and may be reinforced by a central metal rod.
Patent GB-944748-A (GB)
Title: A large tank for storing or transporting liquids
IPC: F17C3/02
Filed: 1962-08-13
Abstract: 944,748. Storing liquefied gases. CONCH INTERNATIONAL METHANE Ltd. Aug. 13, 1962 [Oct. 6, 1961], No. 30889/62. Addition to 850,204. Heading F4P. In a large liquefied gas, e.g. methane container of quadrilateral horizontal cross-section as claimed in the parent Specification, having its vertical walls 1 stiffened by a plurality of vertically spaced horizontal beams 2 each of which is secured to and extends continuously round the interior of the container and wherein the corner portions of each beam are connected by cross-ties 3, the points of connection divide the beam of each side wall into sections of diminishing length towards the middle of the wall. As shown, each beam 2 is divided into five sections of length ratio 9, 8, 7, 8, 9.
Patent GB-1432624-A (GB)
Title: Vehicle brake anti-locking control systems
IPC: F02B1/04
Filed: 1973-06-28
Abstract: 1432624 Antiskid braking systems ROBERT BOSCH GmbH 28 June 1973 [29 June 1972] 30926/73 Heading F2F A circuit arrangement for testing the operational reliability of an antiskid brake system, including a wheel acceleration sensor 29 controlling a pressure reducing valve or regulating valve 14 by way of a transistor switch 38, comprises a pressure switch 25 responsive through a device 24 to wheel cylinder pressure, a monostable stage triggerable at the commencement of the test programme by means of a control switch 61 to produce a simulated delay signal and whose output is connectible to the control input of the switch 38, the input of a warning device being connected to a bi-stable stage whose setting input is controllable by means of the control switch 61 and whose reset input is controllable by means of the pressure switch. As shown the acceleration sensor 29 comprises in series, a pulse tachogenerator 30, a frequency to direct voltage converter 31 a differentiator 32 and a threshold value switch 33, the output of the converter 31 being also connected to an input of an adding member 35 whose output is connected to a second threshold valve switch 36. A vehicle velocity simulating stage 34 including a storage capacitor 341 is connected between converter 31 and a second input of adding membr 35. The outputs of switches 33, 36 are connected to inputs of a NAND gate 37 whose output is connected to the control input of the transistor switch 38. The circuit for testing includes NAND gates 41, 42, 43 having their outputs connected to inputs of a NOR gate 44 whose output is connected to the reset input R of a bistable stage 45. Terminals b1 vl, p1 of the antiskid system are connected to the inputs of a second NOR gate 47 having its output connected to the reset input of a bi-stable stage 48 whose output is connected to a further input of NOR gate 44. A hand-brake switch 49 is connected in series with a pilot lamp 50 and is connected to the input of a NOR gate 52 via an inverter stage 51, a second input of gate 52 being connected to the output of NAND gate 41 and its output being connected to the reset input R of a bi-stable multivibrator stage 53. The outputs of bi-stable stage 45 and a fourth NOR gate 57 are connected to inputs of a fifth NOR gate 58 whose output is connected by way of an inverter stage 59 to a pilot lamp 60 whose other terminal is connected to a positive lead 26 which is connectible via control switch 61 to a supply lead 62. Extinguishing of pilot lamp 60 indicates that all essential groups of the antilocking system are working satisfactorily.
Patent GB-616805-A (GB)
Title: Improved valves for liquid and gas control
IPC: F16K1/36
Filed: 1945-11-17
Abstract: 616,805. Valves. AUGUST, F. C., and AUGUST, J. W. G. Nov. 17, 1945, No. 30928. [Class 135] A valve is provided with an inverted cupshaped closure member 12 of flexible non- metallic material which is slidable in a cylinder 9 to prevent the controlled fluid from having access to the valve-operating spindle, there being a yielding connection between the spindle and the member 12, and means is also provided to limit the pressure transmitted to the member 12 in the closed position. The cylinder may have a serrated lower edge 13 or may be continuous as far as the valve seat and provided with control ports in its curved surface. The closure member which may be of leather, rubber, &c. carries an upstanding spigot 20 to engage in a corresponding recess in the operating spindle 16, the latter having a screw-thread engaging a threaded aperture 14 in the cylinder. An air relief port 19 is provided in the upper end of cylinder 9. The thrust of the spindle 16 is communicated to the closure 12 through a spring 21, but to prevent excess thrust being applied either the screw-thread of the spindle disengages from the mating thread 14 when the member 12 reaches the closed position or, at that point, a stop collar on the spindle abuts against the top of the cylinder.
Patent GB-306469-A (GB)
Title: Improvements in trawling gears
IPC: A01K73/02
Filed: 1927-11-17
Abstract: 306,469. Vigneron, J. B. J. A., and V. D., Ltd. Nov. 17, 1927. Trawling-gear.-Two trawling gears, each of which includes only one shear board 8 arranged to operate a small distance above the ground in connection with one wing of the net 1, the other wing being towed directly .by the boat, are towed by a single boat. The other board is arranged as described in Specification 298,218.
Patent GB-1222699-A (GB)
Title: Discharge lamp starting device
IPC: H05B41/04
Filed: 1968-06-28
Abstract: 1,222,699. Starting circuits for discharge lamps. MATSUSHITA DENKO K.K., and IKEDA DENKI K.K. 28 June, 1968 [29 June, 1967], No. 30979/68. Heading H2H. In order to enhance the operation of discharge lamps fed from an A.C. supply the lamp is supplied with a plurality of high voltage pulse during each half-cycle of the supply. A discharge lamp 3 is connected to an A.C. supply 1 by way of an autotransformer 2, the lamp 3 being connected in parallel with a circuit comprising a pulse generating circuit 7 and a wave distorting circuit 11 connected in series. When the arrangement is connected to the supply 1 a capacitor 6 begins to charge until its charge reaches a point at which a semi-conductor device 4 breaks down. The capacitor 6 then discharges through the portion p, q of the autotransformer 2 which pulse is stepped up by the autotransformer and applied to the lamp 3 as a starting pulse. The wave distorting circuit 11 comprises the parallel combination of a saturable reactor 9 and capacitor 10 thus the current flowing in the series circuit of the pulse generator circuit 7 and wave distorting circuit 11 will have a plurality of maximum values in each half-cycle of the applied A.C. The pulse generating circuit 7 will thus produce a plurality of pulses in each half-cycle. In the pulse generating circuit a saturable reactor may be used instead of the device 4 and the wave distorting circuit may comprise a suitable combination of a semi-conductor breakdown device, a saturable or non-saturable reactor, resistor or capacitor arranged in a series or parallel circuit. The pulse generating circuit may be connected to the lamp circuit by means of a two-winding transformer.
Patent GB-671303-A (GB)
Title: Improvements in and relating to electric circuit control devices
IPC: G05B1/02
Filed: 1949-12-02
Abstract: 671,303. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 2, 1949. [Dec. 3, 1948] No. 31043/49. Class 38 (iii). [Also in Group XXXV] An A.C. commutator motor has an armature 6, a main exciting winding 8, and a compensating winding 9 including a part 10 which serves for improving commutation and which may be shunted by a set of resistors and inductances 11. The motor is supplied through transformer 3 having a controller 7. A device for changing the shunting of the coils 10 as a function of the speed of the motor consists of contact operating mechanism of the balance type having coil 16-17 on core 14 in series with coil 18-19 on core 15. Both coils are subjected to the voltage Ve tapped from the field winding 8, a resistor 20 being included in this circuit. A coil 21-22 on core 14 is in series with a coil 23-24 on core 15 and these two coils are supplied with a voltage Va tapped from the secondary winding of the transformer 3, an adjustable resistor 25 and inductance 26 being included in this circuit. The voltage Va is in phase with the total supply voltage for the motor. At low motor speeds the attractive force upon the core 14 is greater than that upon the core 15 so that contacts 28, 30, are closed and the control circuit for the shunting devices 11 is completed to provide appropriate diversion of the coils 10. At a predetermined speed the attraction on the core 15 becomes such that the contacts 28, 30, separate and contacts 29, 30, close. The shunt circuit of the coils 10 is then conditioned for high-speed operation. Damping devices may include a fluid dashpot 27 and springs 34. Vibrations of the contacts 28, 29, 30, may be prevented by permanent magnets or small holding-coils. A contact 35 may introduce or eliminate portions of the resistor 25 in accordance with the high or low-speed position of the shunting unit 11. The speed at which the balance relay operates may be altered in accordance with the current taken by the motor by means of a current transformer 36 associated with resistor 37 which is in series with coils 21-22, 23-24.
Patent GB-285828-A (GB)
IPC: F16J15/34
Filed: 1927-11-18
Abstract: 285,828. Sauveur, H. Feb. 22, 1927, [Convention date]. Stuffing-boxes, substitutes for; boxes.-A packing for a deep-well pump of the type in which the motor casing is subjected to internal fluid pressure comprises a disc 6 subjected to the outer pressure rotating with the shaft and pressed against a bronze ring 5 in the cover of pump 2, the pressure being just sufficient to prevent leakage. Gas is forced into the motor through pipes 15 at a pressure almost equal to the external liquid pressure. Specification 282,716 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the packing shown in Fig. 2 (Cancelled). The ring 6, which may be of carbon or rubber, is hollowed to contain a rubber packing 7 acted on by a gland! 8. A cup 10 containing rubber packing 9 is pressed towards the gland 8 by a spring 11 abutting on a collar 12 on the shaft. A similar packing may be provided, as shown, for the cover 1 of the motor casing. This subject-matter does not appear in the Specification as accepted.
Patent GB-1510242-A (GB)
Title: Platform seal for bladed rotor
IPC: F01D5/30
Filed: 1976-07-26
Abstract: 1510242 Bladed rotors UNITED TECHNOLOGIES CORP 26 July 1976 [4 Aug 1975] 31062/76 Heading FIT In a compressor rotor of the type having blades 12 with platforms 10 and roots 6 received in slot 4 of disc 2, leakage via the gaps 14 between adjacent platforms is prevented by seal strips 16 each having clearance openings for receiving the roots of a number of the blades and spaced crossbars for spanning the gaps between the platforms of those blades. Each strip is urged outwards under centrifugal force against the undersides of the platforms, and it may extend up to one-half of the circumference of the disc.
Patent GB-341450-A (GB)
Title: Improvements in presses for the treatment of cellulose sheets
IPC: C08B1/12
Filed: 1929-10-12
Abstract: Cellulose nitrate; preparatory treatment of cellulose.-A horizontal press for the treatment of <PICT:0341450/IV/1> <PICT:0341450/IV/2> cellulose sheets, e.g. with alkali lye for the production of alkali cellulose, or with nitric acid for the production of nitrocellulose, is provided with means whereby the liquid is kept in constant movement.  As shown, the press comprises a long tank a in which is located the pressing head b.  Partitions d, connected by chains &c. are guided by rods e.  Liquid is admitted through a pipe f and passes through perforated bottom members i1, k, and overflows into a gutter g fitted with an outflow pipe h. Alternatively, the liquid may be admitted through a number of pipes beneath the bottom members i1, k and extending longitudinally and transversely of the tank.  A drain pipe h1 and sloping bottom permit the tank to be easily drained. The pressed and moistened sheets are removed by a basket i1 of known type.
Patent GB-1046758-A (GB)
Title: Circuit for energising and de-energising electromagnets or relays
Inventor: SIMON JANOS
IPC: H03K17/64
Filed: 1965-07-21
Abstract: 1,046,758. Magnets. CSEPELI SZERSZAMGEPGYAR. July 21, 1965, No. 31132/65. Heading H2H. [Also in Division H3] The initial energization of the coil of an electromagnet or relay is accelerated by applying a high voltage to the coil through a capacitor and de-energization is accelerated by discharging the capacitor through the coil. In Fig. 1a the coil L1 is initially energized by rendering Trl conducting so that charging current flows from a high-voltage source U T2  to the coil, maintenance of the desired current being effected by the flow of current from a lower-voltage source UT 1 . To de-energize the coil Tr1 is rendered non- conducting and Tr 3  conducting with the result that the capacitor C e  is now connected reversely across the coil so as rapidly to de-energize it. A diode D1 provides a discharge current path for L1 should Trl and Tr3 both be non-conducting while diode D2 prevents the higher voltage source discharging into the lower-voltage source. Transistor Tr1 may be replaced by separate simultaneously operated transistors for the two voltage sources. By exchanging the positions of Tr 3  and C e  the upper point of the coil L 1  may be grounded with the negative supply voltage terminals.
Patent GB-910140-A (GB)
Title: Process for preparation of fertilizer prills containing nitrogen phosphorus and potassium
IPC: C05B11/06
Filed: 1961-08-30
Abstract: Fertilizer prills containing nitrogen, phosphorus and potassium are made from a melt which has been prepared, by means inter alia, of appropriate adjustment of pH and addition of a potassium salt, from an acid solution resulting from decomposition of raw phosphate with nitric acid, the melt having a pH of less than 4, measured after a 1 : 1 volume dilution with water.  The acid decomposition solution may be treated in the usual way e.g. by adjusting the molar CaO/P2O5 ratio to 2 : 1 or less, partially neutralising with ammonia and evaporating to a melt.  The pH of the melt may be adjusted to less than 4 in various ways e.g. by adding strong acid to the evaporated liquor before or after addition of a potassium salt, or by stopping the neutralisation of the decomposition solution at an earlier stage. The resulting melt has a relatively low viscosity and is easier to prill, particularly if it is acidified after the addition of the potassium salt, preferably potassium sulphate.  In an example, the pH of a melt is reduced from 4,2 to 3,9 by addition of nitric acid.
Patent GB-313385-A (GB)
Abstract: 313,385. Wallace, R. B. Sept. 24, 1928. No Patent granted (Sealing fee not paid). Ticket punches. - Comprises a combined punch and ticket holder. The holder 12, Fig. 1, has a T-shaped slot from top to bottom to accommodate the correspondingly shaped ends 11 of tickets 10, Fig. 5, which are pressed down in the holder by a spring or other means and are locked by a locking bar 14. Conjoined to the holder is a punch 16 held in normal position by a spring 17, and a die with a square hole to co-operate with the square end of the punch. In use, a ticket is torn off, the stub being left in the holder, and is punched at the selected division by depressing the lever 18, the punching dropping into a magazine 21 thus serving for checking purposes. Guides are provided for positioning tickets, only one of which can be punched at a time.
Patent GB-621815-A (GB)
Title: Improvements in or relating to cutting heads for dry-shaving apparatus
IPC: B26B19/04
Filed: 1946-10-22
Abstract: 621,815. Dry shavers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 22, 1946, No. 31376. Convention date, Feb. 5, 1943. [Class 131] A cutter head for a dry shaver comprises a cutting or guard plate and a cutting member one or both of which are caused to oscillate, the guard plate being centrally and peripherally supported. As shown the cutting plate 9 is supported at its rim and also centrally by a support 16 which, together with the cutting plate, is clamped to the casing 23 by a nut 22, the cutting plate 9 being secured to the support 16 by a screw 17. The cutting member 10 is driven by the oscillations of a lever 13 pivoted at 14 at one end to the support 16 the other end 12 of which passes through a slot in the support 16 to engage the cutting member 10 by means of an aperture 11 therein. The lever is driven from the drive shaft 20 which is provided with an eccentric pin 21 engaging a slot 19 in the lever 13. A tensioning spring 24 is provided for the cutting member 10. Specification 618,303 is referred to.
Patent GB-264466-A (GB)
Title: Improvements in the manufacture and production of condensation products of urea and its derivatives and formaldehyde
IPC: C08J3/24
Filed: 1926-12-10
Abstract: 264,466. I. G. Farbenindustrie Akt.- Ges. Jan. 12, 1926, [Convention date]. Addition to 259,950. Urea-formaldehyde condensation products are hardened by treatment with other acids or acid anhydrides than sulphur dioxide, the acid or acid anhydride being employed in the gaseous state or as a solution in water or other solvent. Bv variation of the kind or concentration of, or duration of treatment with, the hardening agent, the hardening may be restricted to the surface layer of the product or extended throughout the mass. The treatment may be effected under elevated or reduced pressure. Examples are given according to which a viscous condensation product of urea and formaldehyde is (1) coated upon an article to be insulated and the coating hardened by exposure to formic acid vapour, (2) heated in a tens-shaped mould and then either exposed to gaseous hydrofluoric acid or dipped into 40 per cent aqueous hydrofluoric acid.